The other day somebody stated that v2's make more torque, while i2's make more power

[PSk]

Why would that be?. Note this comment was not on this site ... another site.

Surely torque is a function of engine size, while power is a function of engine size and breathing (assuming they both can hold together at the desired rpm)?

Also a 90 degree v2 is better balanced than a inline 2 thus surely it could rev higher with lighter components (ie. casing holding it all together, etc).
Pete

[cholo900rr]

I dont think thats a rule or anything. Many inline fours make a boatload of torque these days. If you take a v twin 1000 vs a 1000 inline 4 you have the potential for more torque with the twin, because you will have to have a much longer stroke and 2 larger bores, which I think helps in the torque aspect. where in the 4 cylinder the displacement is split up into shorter stroke, and 4 smaller bores which can rev much higher to help with horse power. with a v twin vs i twin configuration at the same displacement, if the bore and stroke are the same then it would come down to a lot of other factors like overall engine efficiency. I dont think the v or inline configuration would matter at all.

[BC999S]

Originally Posted by PSk

Why would that be?. Note this comment was not on this site ... another site.

Surely torque is a function of engine size, while power is a function of engine size and breathing (assuming they both can hold together at the desired rpm)?

Also a 90 degree v2 is better balanced than a inline 2 thus surely it could rev higher with lighter components (ie. casing holding it all together, etc).
Pete

Torque is a function of displacement, valve area, and cam timing. Period. Power is a function of this plus rpm.